
South Korean President Lee Myung-bak (left) speaks with Chinese President Hu Jintao during a roundtable meeting at a G-20 summit in Cannes, France on Nov. 4, 2011. (Associated Press)

President Obama (left) listens as South Korean President Lee Myung-bak, wearing a Detroit Tigers baseball cap, speaks at the General Motors Orion assembly plant in Orion Township, Mich., on Oct. 14, 2011. (Associated Press)

President Barack Obama offers a toast during a State Dinner with South Korean President Lee Myung-bak in the East Room at the White House in Washington, Thursday, Oct. 13, 2011. (AP Photo/Charles Dharapak)

President Barack Obama and first lady Michelle Obama stand with South Korean President Lee Myung-bak and first lady Kim Yoon-ok as they welcome them to a State Dinner at the White House in Washington, Thursday, Oct. 13, 2011. (AP Photo/Charles Dharapak)

President Barack Obama and first lady Michelle Obama walk with South Korean President Lee Myung-bak and his wife Kim Yoon-ok as they welcome them to a State Dinner at the White House in Washington, Thursday, Oct. 13, 2011. (AP Photo/Charles Dharapak)

A view of the East Room of White House where President Barack Obama and first lady Michelle Obama are hosting a state dinner for South Korean President Lee Myung-bak on Thursday, Oct. 13, 2011, in Washington. (AP Photo/Evan Vucci)

South Korean President Lee Myung-bak is applauded as he arrives to address to a joint meeting of Congress at the Capitol in Washington, Thursday, Oct. 13, 2011. Behind Lee are Vice President Joe Biden, left, and Speaker of the House John Boehner, R-Ohio, right. (AP Photo/J. Scott Applewhite)

South Korean President Lee Myung-bak, left, shakes hands with Vice President Joe Biden after addressing a joint session of Congress at the Capitol, in Washington, Thursday, Oct. 13, 2011. (AP Photo/Cliff Owen)

South Korean President Lee Myung-bak addresses a joint session of Congress on Capitol Hill in Washington, Thursday, Oct. 13, 2011. (AP Photo/Cliff Owen)